#!/usr/bin/env bash
#
# Bash Functions sourced by .bashrc / .sshrc
#

# Get SSL Certificate information
# Based on https://serverfault.com/questions/661978/displaying-a-remote-ssl-certificate-details-using-cli-tools
function getCertInfo() {
    local myServer=${1:?a Servername is required}
    local myPort=${2:-443}

    echo | openssl s_client -showcerts -servername "$myServer" -connect "$myServer":"$myPort" 2>/dev/null | openssl x509 -inform pem -noout -text
}

#
# Some functions (some by c't magazine)
#

# change directory and list
cdl() {
    if cd "$@"; then
        ls
    fi
}

backup() {
    # local @files = "$@"
    for f in "$@"
    do
        if [ -d "$f" ]; then
            cp -p -r "$f" "$f".backup-"$(date +%Y-%m-%d_%H_%M_%S)"
        else
            cp -p "$f" "$f".backup-"$(date +%Y-%m-%d_%H_%M_%S)"
        fi
    done
}

extract() {
    case $1 in
        *.tar.bz2)      tar xvjf "$1";;
        *.tar.gz|*.tgz) tar xvfz "$1";;
        *.zip)          unzip "$1";;
    *)      echo "Not supported: $1";;
    esac
}

# Misc functions

# convert epoch timestamp to human readable date
epoch2date() {
    local string="${1:-0}"
    date -d "@$string"
}

# inspired by
# https://unix.stackexchange.com/questions/59501/convert-file-path-to-uri-in-bash
# https://www.unix.com/shell-programming-and-scripting/159863-how-store-files-names-directory-array.html
file2uri() {
    local root=${1:-.}
    local filter=${2:-*}

    if ! python3 --version &> /dev/null
    then
        echo "python not available!"
        return 2
    fi

    echo "get files for $root"
    #for f in "$root/*"; do
        # echo "checking $f"
    #    if [ -f $f ]; then
            # echo "is a file: $f"
    #        python -c "import sys, pathlib; print(pathlib.Path(input()).resolve().as_uri())" <<< "$f"
    #    fi
    #done

    # arr_uris=(`ls $root/*.ma4`)

    arr=()
    for f in $root/*.m4a; do
        echo "f: $f"
        echo python3 -c "import sys, pathlib; print(pathlib.Path(input()).resolve().as_uri())" <<< "$f"
        uri=$(python3 -c "import sys, pathlib; print(pathlib.Path(input()).resolve().as_uri())" <<< "$f")
        arr[${#arr[@]}]="$uri"
    done
    for a in "${arr[@]}"; do
        echo "$a"
    done
}

enqueueFiles() {
    local root="${1:-.}"

    if ! rhythmbox-client --version &> /dev/null
    then
        echo "No rhythmbox-client available!"
        return 3
    fi

    file2uri "$root"
    # echo "Array is ${arr[*]}"
    for a in "${arr[@]}"; do
        echo rhythmbox-client --no-start --enqueue  $a
    done
}

# List SSH keys
# See https://prefetch.net/blog/index.php/2010/12/13/locating-the-ssh-key-type-and-key-size-from-a-public-key-file/
list-ssh-keys() {
    for f in ~/.ssh/*.pub
    do
        printf "%-50s -> $(ssh-keygen -l -f $f)\n" $f
    done
}

{{ if eq .chezmoi.os "linux" }}
{{   if (or (eq .chezmoi.osRelease.id "debian" "raspbian") (eq .chezmoi.osRelease.idLike "debian")) }}
# Show version of a Debian package
debversion() {
    local pkgname="${1:?packagename required}"
    dpkg -s $pkgname | grep Version
}

# Show files of a Debian package
deblist() {
    local pkgname="${1:?packagenamme required}"
    dpkg-query -L $pkgname
}

# Show apt installation history
debhistory() {
    zcat /var/log/apt/history.log.*.gz | \
        /usr/bin/cat - /var/log/apt/history.log | \
        grep -Po '^Commandline:(?= apt)(?=.* install ) \K.*|^Start-Date: \K.*' | \
        grep -B1 "^apt" | \
        grep -v -- "^--" | \
        paste -d " "  - - | \
        sort
}

{{   end }}
{{ end }}

# Run 'top' by a list of processes matching name.
topby() {
    local name=${1:?name required}
    local pidlist="$(pidof $name | sed 's/ /,/g')"
    top -p $pidlist
}

# Docker helpers
# Update docker-compose containers
# https://stackoverflow.com/questions/49316462/how-to-update-existing-images-with-docker-compose
dcupdate() {
    # TODO: check when sudo is needed
    docker-compose pull
    docker-compose up -d
    docker image prune
    # TODO: logfile
}

# Python virtualenv helper
function activate-venv() {
    local venv=${1:-noneselected}
    local ENV_DIR=$HOME/.virtual_envs

    if [[ -d "$ENV_DIR/$venv" ]]; then
        echo -e "\e[32msetting virtualenv to $ENV_DIR/$venv \e[0m"
        source "$ENV_DIR/$venv/bin/activate"
    else
        echo -e "\e[33mvirtualenv does not exist\e[0m"
        echo -e "Current virtualenvs available: \e[32m"
        ls "$ENV_DIR"
        echo -e "\e[0m"
    fi
}
function create-venv() {
    local venv=$1
    local ENV_DIR=$HOME/.virtual_envs

    if [[ "$venv" =~ ^[a-zA-Z0-9_-]+$ ]]; then
        python3 -m venv "$ENV_DIR/$venv"
        echo -e "\e[32mvirtualenv created: $ENV_DIR/$venv \e[0m"
    else
        echo -e "\e[32minvalid name: $venv \e[0m"
    fi
}

PATH=$PATH:$HOME/bin